Pandas - Python -如何减去两个不同的日期列

import pandas as pd

# 创建一个示例数据集
data = {'start_date': ['2022-01-01', '2022-02-01', '2022-03-01'],
        'end_date': ['2022-01-10', '2022-02-15', '2022-03-20']}
df = pd.DataFrame(data)

# 将日期列转换为datetime类型
df['start_date'] = pd.to_datetime(df['start_date'])
df['end_date'] = pd.to_datetime(df['end_date'])

# 计算两个日期列的差值
df['duration'] = df['end_date'] - df['start_date']

# 打印结果
print(df)

  start_date   end_date duration
0 2022-01-01 2022-01-10   9 days
1 2022-02-01 2022-02-15  14 days
2 2022-03-01 2022-03-20  19 days